i8 ENTOMOLOGICAL NEWS. [January, 



are entirely in accord with those of the present reviewer, who thinks that 

 they will be adopted by Odonatists generally. The chief changes, so far 

 as they affect North American dragonflies, are as follows: the first in each 

 pair of names being the one used by Mr. Kirby. Sympetrmn = Diplax, 

 Lib. lydia Dru. = triuiaculata DeGeer, Lib. vibrans Fabr. = lydia Dru. 

 Hag., i85i), Diastaiomma = Ophiogomphus, Aeshna (without c) = Gom- 

 phus, Aeschna (with c) retained = Aeschna, Agrion = Calopteryx, Mi- 

 cronympha = Ischnura, Ccenagrion = Agrion. Even if it be a fact that 

 many of the changes here noted rest on a priority of a few years, inas- 

 much as the names to be supplanted have been in general use for many 

 (in some cases over fifty) years, it seems to the reviewer totally unneces- 

 sary to change them. The rule of priority may be very good in the ab- 

 stract, but when it conflicts with that better rule of long and common use, 

 it is more to be honored in the breach than in the observance. For him- 

 self, the reviewer proposes to continue using the old nomenclature until 

 more convincing reasons for changing are presented. 



In spite of these serious faults, this Catalogue is a most useful and valu- 

 able work. It furnishes us, in a commodious form, with a key to our 

 present knowledge of the Odonata, both living and fossil. The most 

 excellent index at the end of the volume affords a ready means of locating 

 any name which has been proposed in this group of insects. Finally, no 

 student of the Odonata can do without it. — Philip P. Calvert. 



Entomologische Nachrichten, xvi. No. 19, October, 1890. — New 

 Ichneumon flies from north and middle Germany,* by Dr. Kriechbaumer. 

 On Hylemyia petiicil/aris Rnd. and some similar species, by P. Stein. 

 Peleciutn Drakei* n. sp. of the Coleopterous tribe of the Stomidae, by 

 G. Quedenfeldt; trom Matto-Grosso, S. America. No. 20, October, 1890. 

 — Entomological notes, by Prof Dr. F. Thomas (on Chionea, Nipius, 

 Chrysopa, Leiosontus, Byturus). On Ornithomyia turdi Latr., and on 

 the author of Bibio anglicus, V. v. Roder. Victor Antoine Signor'et, by 

 L. Fairmaire. No. 21, November, 1890. — A contribution to the German 

 Hymenopterous Fauna,* by C. Verhoeff. 



Doings of Societies. 



A Regular Meeting of the Entomological Section of the Academy of 

 Natural Sciences was held Oct. 23, 1890, Director Dr. Horn in the chair. 

 Members present: Ridings, Laurent and Skinner. Associates: Fox, 

 Westcott and Dr. Castle. Dr. Stephens, of Plymouth, Mass., visitor. A 

 paper entitled. Mouth Parts of Diptera, by Prof J. B. Smith, was presented 

 and referred to the Publication Committee. Dr. Horn referred to his 

 studies on Throscidae and Eucnemidte for the Biologia Centrali-Americana. 

 The material had been received on April 15th and the corrected proof 

 returned October 15th. The completed work will make sixty-five quarto 

 * Contains new species other than North American. 



